Rotary motor.



No. 825,387. PATENTED JULY 10, 1906. A. P. HANSOOM.

ROTARY MOTOR.

APPLICATION FILED JAN. 1s. 190s.

inlllllllllllllllllllIllllllli llllll central section through l a cross-section thereof, broken away into dif- 2o' Y a b and whic `concentric with the axis thereof.

UNITED sTATEs PATENT oEEroE.

ADELBERT P. HANSCOM, OF MEDFORD, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JAMES H. HERRON, OF DETROIT, MICHIGAN.

'ROTARY MOTOR.

i 4Specication of Letters Patent.

Patented.` July 10, 1906.

To a/ZZ whom it may concern.- i V i Be it known that I, ADELBERT P. HANsCoM, a citizen ofthe United States of America ,residing at Medford, in the county of MiddleseX and State of Massachusetts, have invented certain new and useful Improvements in Rotary Motors, of which the following is a specification, vreference being had therein to t e accompanying drawings.

The invention relates to rotary motors whichare operated by an expansible fluid, such afsfcompressed air, and is more particularly designed for use in the construction of portable rotary drills.

The invention consists in certain novel features of construction, as hereinafter set forth.

In the drawings, Fieure 1 `is a longitudinal the motor. Fig. 2 is ferent planes toshow various portions of the construction. y

A is a suitable casing for inclosing the operating mechanism and preferably comprising a central cylindrical portion B and the caps C D at op osite ends thereof secured together, as by t e bolts E. The head C is hol-i low and is constructed to form therein two chambers a b, separated from each other by a division-wall c. This wall is so sha ed as to form substantially radially exten ing ortions d e, res actively, of the two cham ers alternate with each other, as illustrated in Fig.' 2. Furthermore, the direction of the wall is such as to obliquely cross the exact radial lines, so that relative to a rotating body one end of each of said sections is in advance of the other.

G is a revoluble member arranged within the cylindrical portion B of the casing-and H represents a series of cylinders carried by and referably formed integral with the revo uble member G, said cylinders being arranged with their axes parallel to the axis of the revoluble member and. case. 1, I is a head or disk referably formed integral with the cylin ers H and member Gv and fitting a ainst the lower .facef of the head C. This disk forms, in effect, a valve for controlling a series of orts g, formed in the lower wall h of the head) C and communicating with the chambers a b. All said ports are arrangedinarcs concentric with the axis of the casing and revoluble member 4and are adapted to register with cor-respondf ing ports i lthrough the disk member I and which communicate with the res ective cylln- `ders H. Thus in the rotation o the member G the cylindersV H are alternately placed in communication with the chambers a b. n

Within each of the cylinders H is a iston J, which is connected by a pitman to a crank L, the latter bein journaled in bearlngs 7' 7c, secured'to the revo uble member G.

M is a beveled inion mounted upon each of the crank-shafts L, and N is an annular beveled rack secured to the casing and engaging with said pinions, the arrangement rbeing such that the rotation of the pinions, due to the reciprocation of the piston, will cause them to travel about the annular rack, thereby revolving the member G and the cylinders carried thereby.

The revoluble member G may be used for directly' actuating the rotary driven member; vbut where it is desired tochange the speed of the latter a suitable variable-s eed transmission may be employed. As lustrated, the driven spindle O is arranged in axial aline- :ment with the revoluble member Gr` in the ..8

lower portion of the case A, and the two are connected. ,to each other at theirk adjacent ends through the medium of a ball-bearing coupling P.

Q Q are intermeshing gears respectively upon the member G and the counter-shaft R, and S S are slidable gears on -the countershaft for meshing, respectively, with the gears T T on the driven spindle O. To permit of shifting the gears S S, the shaft `R is journaled in a sleeve Ufwhichpasses through a hub V, formed on the case, and is'provided with cam-slot Z, engaging a pin or stud 'm on the case, so' that. the rotation-pf said sleeve will also cause its longitudinal movement. W is an actuating-handle connected to the sleeve without the casing.

The revoluble member-G and the spindle O preferably engage ball-thrustbearin s X Y at opposite ends of the case, and the caring P is so constructed as to also constitute a thrust-bearing. Z is a threaded shank engaging a correspondingly-threaded socket ormed in the cap C and preferably extending into a recess o` in the revolublemember G. The upper end of this shank is rovided with a center p for engaging a suitab e sup ortingframe, and a feed-wheel q is secure to the shank, by means of which the casing A may IDO '5 `ter having the annular rack 'N formed integral therewith. The section r has attached thereto, preferably at diametrically opposite Jfpoints, handles tu, which also constitute admission and exhaust connections for the moxo tive iiuid and which are connected by channels w with the chambers a b.

The construction being as described, in operation the compressed air or other motive fluid is fed thrpugh the handle t and channel w into thechamber al and thence into -the ind,ward extensiond ofsaid chamber. .The arrangement of the ports g i is such asto suiccessively admit the air from the chamber a into the cylinders H to cause the downward 2o movement of the pistons, while during the upward movement the ports 'i are in commumcation with the exhaust-chamber b. Thus continuous rotary motion is transmitted to f the revolublemember G throuvh the medium 5 of the itmen K, cranks-L, andbpinions M and rack v l What I claim as my invention is- 1. A rotary motor comprising a revoluble member, a cylinder carried thereby, a recip- 3o rocatory piston in said cylinder, a connecting- 'rod for said piston, a crank-shaft operatively connected to said rod and extending radially osaid revoluble member and means for translating the movement of said crank-shaft into a rotary drive of said revoluble member.

-, 2. In a rotary motor, a revoluble member, a .cylinder carried thereby and havingits axis `parallel tothe axis of rotation, a reciprocav tory piston in said cylinder, Ia.` connectin -rod 4o therefor, a crank-'fshaft operated by sai rod and means for translating the movement of said crank-shaft into a rotary drive ofsaid revoluble memberr 3. In a rotary r notor the combination with a revoluble member, of a .cylinder "carried thereby and havingits axis parallel withthe axis of rotation, a reciprocatory piston in said A cylinder, a crank actuated by said piston and Journaled in said revol'uble member, a pinion 5b driven by said crank and a'stationary annular rack, whereby the movement of the piston is translated into rotary movement of the revoluble member.

4. A- rotary motor comprising a casin a revoluble member journaled therein, a cy inder carried by said revoluble member having its axis arranged parallel thereto, -a reciprocatory piston in said cylinder, a revoluble pinion, an annular rack on said casing en- 6 o gaging said pinion and drive connections between said piston and pinion.

5. A rotary motor comprising a casin a revoluble member journaled therein, a cy der parallel with 4the axis of and carried by said revoluble member having' an air-port in 65 the wall thereof, pressure and exhaust chambers in said casing with which said port is alternatel registered in the rotation of said `revolub e member, a reciprocatory piston in said cylinder, an annular rack on said casing, 7e a pinion meshing therewith j ournaled in said revoluble member, and connections between said piston and pinion for, translating the reciprocatory movement of the one into the rotary movement of the other.

6. Y1n a rotary motor, arevoluble series of cylinders having parallel axes and a series of a ternately-arranged pressure and exhaust connections with which said cylinders are successively registered during their rotation. 8o 7 In. a rotary motor, a revoluble series Vof cylinders vhaving their axes parallel to the axis of rotationand a series of alternately-arranged pressure 'and exhaust connections with which said cylinders successively communicateduring their rotation, said connections being arranged to vary the time of admission and exhaust to and from the several cylinders of the series. l f .8. A rotary motor comprising a revoluble 9o series of cylinders,..a series of alternately-arrangedp ess'ure :and exhaust connections and ports' or establishing communication between `"said c linders and rassure and eX- haust conn ionsduring' t e rotation of the 95 series ci c' ders, the portsv for thev respective cylinders" bemg arranged in different paths. i y..

9. In* a rotary motor the combination with a revoluble member and a .c linder carried roo thereby, of a chambered heady arranged par-v allel te th plane of rotation of ,said cylinder and in "ce act therewith and a zigzag wall vWithinsaid head'se arating'the same into alpressure and exhaust m5" ternate'ly arrange chambers which aref. crossedfb said cylinder during its rotation, said hea and cylinder being providedfjwith registering ports for'al- A ternate. communication with said pressure vand exhaust chambers .during their rotation. 1 1o .1&0. rotary motor com rising a casing, a revolu'b'le member journa ed concentrically within said casing, a chambered head at one end ofsaid casing provided with alternatelyarranged pressure. and exhaust' chambers 115 .and havin ports in its face communicatin with said c ambers, cylinders carried by. sai revoluble member ported to respectively register with the corresponding ports in said chambered head, reci rocatory pistons in 12o said cylinders, an annullsir rack in said casing, pinions meshing therewith and connections etween all of said pistons and their respective pinions for translating Vthe reciprocatory 1 movement of the former into the rotation of x 25 the latter, whereby said revoluble member is caused to rotate. c 1 1. In a rotary motor, a revoluble member com rising an integral series of cylindershavcylinder arranged for rotation about an axis parallel with its own axis and arranged to register with said connections, a reciprocatory piston in said cylinder, a connecting-rod for said piston, a crank-shaft radially.A ar-` ran' ed in relation to the axis )of rotation of sai cylinder, and means whereby the rotation-oil said crank-shaft Will rotate said cylinder` 4 13. In a rotary motor, a-cylinder, a recip.- rocatory piston therein, a connecting-rod for said piston, a 'crank-shaft -operativelbvcomnected to said rod, and means Where y the rotation of said crank-shaft will cause the ro- @meer tationof said cylinder about an axis parallel with the axis of the cylinder.

14. A rotary motor com rising a casing, a revoluble driven member t erein anda drive mechanism comprising a cooperating annular rack an'd pinion, and a cylinder and piston for rotatin the pinion arranged Withinand parallel wit the axis of the casing.

15. A rotary motor comprising a casing, a rotary driven member therein and .a drive mechanism comprising an annular beveled rack, a coperatlng beveled pinion, a cylin der and piston arranged longitudinally Within the casing, and a connection between the piston and pinion whereby the latter ,is rotated by the reciprocation of the former.

In testimony whereof I affix my signature xin presenceof two Witnesses.

ADELBERT I. HANSCOM.

Witnesses:

CLARENCE H. WALKER, W. T. FAGE. 

